Stimmen - 3, Durchschnittliche Bewertung: 3 ( )

Hersteller: Allegro Multimedia Dateigröße: 220.39 kb Dateiname: Unterrichtssprache:

100% (3) Sens(25.C) Ratiometric. The A1301 and A1302 feature a ratiometric output. This means that the quiescent voltage output, VOUTQ, and the magnetic sensitivity, Sens, are proportional to the supply voltage, VCC. The ratiometric change (%) in the quiescent voltage output is defined as: VOUTQ(VCC) VOUTQ(5V).VOUTQ(.V) = . 100% (4) 5V VCC and the ratiometric change (%) in sensitivity is defined as: Sens(VCC) Sens(5V) .Sens(.V) = . 100% (5) VCC 5V Linearity and Symmetry. The on-chip output stage is designed to provide linear output at a supply voltage of 5 V. Although the application of very high magnetic fields does not damage these devices, it does force their output into a nonlinear region. Linearity in percent is measured and defined as: – VOUT(+B) VOUTQ Lin+= . 100% (6) 2 (VOUT(+B.) –VVOUTQ ) – VOUT(–B) VOUTQ Lin–= . 100% (7) 2(VOUT(–B.) –VOUTQ) and output symmetry as: – VOUT(+B) VOUTQ Sym = . 100% (8) VOUTQ –VOUT(–B) Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 A1301 and Continuous-Time Ratiometric A1302 Linear Hall Effect Sensors Typical Characteristics (30 pieces, 3 fabrication lots) 1301 Device Sensitivity vs. Ambient Temperature 1302 Device Sensitivity vs. Temperature 1.40 2.65 1.38 LH Package UA Package LH Package UA Package 2.60 1.36 1.34 1.32 1.30 1.28 Sensitivity ( mV/G) Output Voltage (V) Sensitivity ( mV/G) Sensitivity ( mV/G) Output Voltage (V) Sensitivity ( mV/G) 2.55 2.50 2.45 2.40 1.26 1.24 –50 –25 0 25 50 75 100125 150 -50 -25 0 25 50 75 100125 150 Temperature (°C) Temperature (°C) 2.35 1301 Device VOUTQ vs. Ambient Temperature 1302 Device VOUTQ vs. Ambient Temperature 2.60 2.60 2.55 2.55 2.50 2.50 2.45 2.45 2.40 2.40 –50 –25 0 25 50 75 100 125150 –50 –25 0 25 50 75 100 125150 Temperature (°C) Temperature (°C) 1301 Device Sensitivity vs. Supply Voltage 1302 Device Sensitivity vs. Supply Voltage 1.7 3.5 1.6 3.0 1.5 1.4 1.3 1.2 2.5 2.0 1.1 1.5 1.0 4.5 5.0 5.5 6.0 4.5 5.0 5.5 6.0 Supply Voltage (V) Supply Voltage (V) Continued on the next page... Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 A1301 and Continuous-Time Ratiometric A1302 Linear Hall Effect Sensors Typical Characteristics, continued (30 pieces, 3 fabrication lots) 1302 Device VOUTQ vs. Supply Voltage 1301 Device VOUTQ vs. Supply Voltage 3.5 3.5 Output Voltage (V) Symmetry (% ) Linearity (% ) Symmetry (%) Linearity (% ) Output Voltage (V) 3.0 2.5 3.0 2.5 2.0 2.0 1.5 1.5 4.5 5.0 5.5 6.0 4.5 5.0 5.5 6.0 Supply Voltage (V) Supply Voltage (V) 1301 Device LIN+ and LIN– vs. Supply Voltage 1302 Device LIN+ and LIN– vs. Supply Voltage 100.4 100.0 100.3 LIN– LIN+ LIN– LIN+ 99.9 99.8 99.7 100.2 100.1 100.0 99.9 99.6 99.8 4.5 5.0 5.5 6.0 4.5 5.0 5.5 6.0 Supply Voltage (V) Supply Voltage (V) 1301 Device Symmetry vs. Supply Voltage 1302 Device Symmetry vs. Supply Voltage 100.0 100.5 99.9 100.4 100.3 99.8 100.2 99.7 100.1 99.6 100.0 99.5 99.9 99.4 99.8 99.3 99.7 99.2 99.6 99.1 99.5 99.0 4.5 5.0 5.5 6.0 Supply Voltage (V) Supply Voltage (V) 4.5 5.0 5.5 6.0 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 A1301 and Continuous-Time Ratiometric A1302 Linear Hall Effect Sensors Package LH, 3-Pin; (SOT-23W) 0.15 0.00 .006 .000 1.17 0.75 .046 .030 0.50 0.30 .020 .012 2.10 1.85 .083 .073 3.00 2.70 .118 .106 1.49 NOM .059 0.96 NOM .038 0.20 0.08 .008 .003 8. 0. 0.60 0.25 .024 .010 CSEATING PLANE A B 3X 0.20 [.008] M C A B 0.15 [.006] M C A B C0.10 [.004] 3X 0.95 .037 1.90 .075 0.25 .010 3.04 2.80 .120 .110 21 3 GAUGE PLANE SEATING PLANE B A B Preliminary dimensions, for reference only Dimensions in millimeters U.S. Customary dimensions (in.) in brackets, for reference only (reference JEDEC TO-236 AB, except case width and terminal tip-to-tip) Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead configuration at supplier discretion within limits shown Hall element (not to scale) Active Area Depth 0.28 [.011] A A A Pin-out Drawings Package LH Package UA 12 12 3 3 Terminal List Symbol Number Description Connects power supply to chip Output from circuit Package LH 1 2 Package UA 1 3 VCC VOUT GND 3 2 Ground Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 A1301 and Continuous-Time Ratiometric A1302 Linear Hall Effect Sensors .122 .117 Package UA, 3-Pin SIP B D D .164 .159 4.17 4.04 3.10 2.97 .062 .058 1.57 1.47 .017 .014 0.44 0.35 .019 .014 0.48 0.36 .640 .600 16.26 15.24 .085 MAX 2.16 .050 NOM 1.27 .031 REF 0.79 .0805 NOM 2.04 1.44.0565 NOM Dimensions in inches Metric dimensions (mm) in brackets, for reference only 2 31 A A B C C Dambar removal protrusion (6X) Active Area Depth .0195 [0.50] NOM D Hall element (not to scale) Ejector mark on opposite side The products described herein are m...

Herunterladen

Geben Sie zwei Ziffern: